Second Battle of Çatalca, fought on 3 February – 30 May 1913 between the Bulgarians and Ottomans
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First Battle of Çatalca, fought on 17–18 November 1912 between the Bulgarians and Ottomans
), he became famous with his masterpieces of battle painting: Manoeuvres (series began in 1899 and lasted until the Balkan Wars, The Samara flag (1911), Onslaught (or Bayonet charge, 1913), The Turkish retreat at Lüleburgaz (1913), Lüleburgaz-Çatalca (1913) and a series of sketches and complete works on the siege of Edirne, among which Bibouac in front of Edirne (1913), Resting after 13 March 1913 (1913), etc.
During the First Balkan War of 1912–1913, Drangov headed a brigade on the Thracian front, defeating the Ottomans at Çatalca and during the Siege of Adrianople.